scholarly journals Mechanical Properties of Short Polymer Fiber-Reinforced Geopolymer Composites

2020 ◽  
Vol 4 (3) ◽  
pp. 128 ◽  
Author(s):  
Kinga Korniejenko ◽  
Wei-Ting Lin ◽  
Hana Šimonová
Keyword(s):  
Mechanical Properties ◽  
Construction Industry ◽  
Polymer Fiber ◽  
Short Fibers ◽  
Potential Applications ◽  
Fiber Reinforcements ◽  
New Material ◽  
Materials Used ◽  
Long Fibers ◽  
Geopolymer Composites

The article describes the state of the art in reinforced geopolymers, taking into consideration various types of polymer fiber reinforcements, such as polypropylene, polyethylene, or polylactic acid. The description is focused on the usage of polymer short fibers and the mechanical properties of the geopolymer composites. However, to show a wider research background, numerous references are discussed concerning the selected studies on reinforcing geopolymer composites with long fibers and fabrics. The research method applied in the article is the critical analysis of literature sources, including a comparison of new material with other materials used in similar applications. The results of the research are discussed in a comparative context and the properties of the composites are juxtaposed with the properties of the standard materials used in the construction industry. Potential applications in the construction industry are presented. Moreover, the contemporary research challenges for geopolymer materials reinforced with fibers are presented.

scholarly journals Novel Biobased Textile Fiber from Colombian Agro-Industrial Waste Fiber

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2640 ◽  
Author(s):  
Maria Amaya Vergara ◽  
Melissa Cortés Gómez ◽  
Maria Restrepo Restrepo ◽  
Jorge Manrique Henao ◽  
Miguel Pereira Soto ◽  
...  
Keyword(s):  
Textile Industry ◽  
Industrial Waste ◽  
Degree Of Polymerization ◽  
Cellulose Content ◽  
Short Fibers ◽  
Cellulose Pulp ◽  
Potential Applications ◽  
Fique Fibers ◽  
Regenerated Fibers ◽  
Long Fibers

Fique fibers, native to Colombia, are traditionally used for ropes and bags. In the extraction of long fibers for these purposes, the same amount of short fibers is generated; the short fibers are then discarded in the soil or in landfills. This agro-industrial waste is cellulose-rich and can be potentially developed into new biobased products. As an alternative use for these fibers, viscose regenerated fibers with potential applications in the textile industry were developed. Fique waste fibers were pulped (to produce fique cellulose pulp, FCP) using a 33 design of experiment (DOE) to adjust the variables of the whitening treatment, and DOE analysis showed that time and hydrogen peroxide concentration do not have a significant effect on non-cellulosic remotion, unlike temperature. The behavior of this pulp in the production of viscose was compared against that of commercially available wood cellulose pulp (WCP). FCP showed a suitable cellulose content with a high degree of polymerization, which makes it a viable pulp for producing discontinuous viscose rayon filaments. Both pulps showed the same performance in the production of the viscose dope and the same chemical, thermal, and mechanical behavior after being regenerated.

scholarly journals Use of Plastic Aggregates in Concrete

2019 ◽  
Vol 9 (1) ◽  
pp. 4406-4412
Keyword(s):  
Mechanical Properties ◽  
Carbon Dioxide ◽  
Fly Ash ◽  
Construction Industry ◽  
Negative Impact ◽  
Raw Materials ◽  
Waste Products ◽  
Waste Plastic ◽  
Coarse Aggregates ◽  
Materials Used

There is no doubt concrete is most useful thing in construction industry but it has a negative impact also, just like a coin has two faces. Raw materials used in manufacturing of concrete affects the environment in one or the another negative way. Like manufacturing of cement produce carbon dioxide whereas the production of aggregates adds dust to the environment. Production of coarse aggregates also impact the geology of the area from they were extracted. A step taken in this direction is the use of waste products along with or in replacement of cement. Many of these materials are already in use, like silica fume, fly ash etc. In this study, plastic coarse aggregates were used in place of natural coarse aggregates. Plastic aggregates were produced by little processing of waste plastic. Plastic is the biggest threat to the environment, and it is affecting the environment rapidly. Some recent studies show that it can be used construction industry due to some of its properties like inert behavior, resistance to degradation etc. Also use of waste plastic can help in reducing plastic waste Various experiments were performed to test the mechanical properties of the concrete with plastic coarse aggregates. Concrete was prepared using plastic coarse aggregates in varying proportions of 0, 2.5, 5, 7.5 and 10%

scholarly journals Pervious Concrete: A Review

2021 ◽  
Vol 1 (1) ◽  
pp. 12-14
Author(s):  
Ramesh Gomasa
Keyword(s):  
Water Management ◽  
Mechanical Properties ◽  
Construction Industry ◽  
Construction Materials ◽  
Special Property ◽  
Pervious Concrete ◽  
Conventional Concrete ◽  
New Type ◽  
Materials Used ◽  
Paper Author

Pervious Concrete is a new type of concrete used widely in the construction industry. It has good physical and also mechanical properties, and it gives good strength. It is used mainly in the water management of the system. So, by using this application, concrete is very famous. There are many advantages to using pervious concrete, and compared to regular conventional concrete, it has some special properties. The special property of permeability. In this transfer or transmission of air or water into the soil or system. This paper author mainly explains the importance and uses, and advantages of Pervious Concrete and explained the Materials used for pervious concrete. This type of concrete is firstly used in Europe afterward, and it can be widely used as construction materials for structures. This paper may help understand Transparent Concrete for everyone easily. It gives a quick review of the Pervious Concrete.

scholarly journals Pervious Concrete: A Review

2021 ◽  
pp. 12-14
Author(s):  
Gomasa Ramesh ◽  
Keyword(s):  
Water Management ◽  
Mechanical Properties ◽  
Construction Industry ◽  
Construction Materials ◽  
Special Property ◽  
Pervious Concrete ◽  
Conventional Concrete ◽  
New Type ◽  
Materials Used ◽  
Paper Author

Pervious Concrete is a new type of concrete used widely in the construction industry. It has good physical and also mechanical properties, and it gives good strength. It is used mainly in the water management of the system. So, by using this application, concrete is very famous. There are many advantages to using pervious concrete, and compared to regular conventional concrete, it has some special properties. The special property of permeability. In this transfer or transmission of air or water into the soil or system. This paper author mainly explains the importance and uses, and advantages of Pervious Concrete and explained the Materials used for pervious concrete. This type of concrete is firstly used in Europe afterward, and it can be widely used as construction materials for structures. This paper may help understand Transparent Concrete for everyone easily. It gives a quick review of the Pervious Concrete.

scholarly journals The possibility of using waste materials as raw materials for the production of geopolymers

2020 ◽  
pp. 48-56
Author(s):  
Beata Figiela ◽  
Kinga Korniejenko
Keyword(s):  
Construction Industry ◽  
Raw Materials ◽  
Mining Industry ◽  
Waste Materials ◽  
Aluminum Production ◽  
Processing Waste ◽  
Practical Applications ◽  
New Material ◽  
Production Research ◽  
Materials Used

This article shows the possibility of using industrial and mining waste for creating new eco-friendly materials – geopolymers. The main objective of the article is to analyze the possibilities of using new composite received from waste materials from mining industry in practical applications, especially in construction industry. The article presents benefits and potential threats for using wastes for production of geopolymers from gangue, waste from iron processing, waste from copper mining and processing, waste from chromium processing and so-called red mud from aluminum production. Research methods applied in the article are: critical analysis of literature sources, including comparison new material with other materials used in similar applications.

New Ceramic Products from Slate and Aluminium Sludge Wastes

2006 ◽  
Vol 514-516 ◽  
pp. 1695-1699 ◽  
Author(s):  
Isabel M. Martins ◽  
Claudino Xavier ◽  
Maria Helena Mendonça ◽  
Manuela Oliveira
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Glassy Phase ◽  
Ceramic Matrix ◽  
Leaching Tests ◽  
Bend Strength ◽  
Potential Applications ◽  
New Material ◽  
Microstructure Of The Material ◽  
Resistant Ceramic

Previous studies had shown that a promising material could be obtained by mixing aluminium-rich sludge with slate powder (with Al2O3:SiO2 molar proportion of 2:1), shaping by uniaxial pressing and sintering at 1300oC, in order both to detoxify the sludge by fixing the metals in a leach-resistant ceramic matrix and to yield a new material from the reactions of the above compounds at high temperature. In view of potential applications, since this material was also found to be inert after leaching tests, a further systematic study, reported in the present paper, was carried out, in order to determine its mechanical properties and discuss them in function of the microstructure. The average values of Vickers hardness HV3 (683), bend strength (126 MPa), Young's modulus (161GPa) and fracture toughness (3.35 MPa.m1/2) are significantly higher than those found for the as sintered slate powders, which is attributed to the increased fraction of α- alumina and reduced content of glassy phase in the microstructure of the material with sludge addition.

scholarly journals Bio-Inspired Hydrogels via 3D Bioprinting

2020 ◽  
Author(s):  
Lei Nie ◽  
Can Wang ◽  
Yaling Deng ◽  
Amin Shavandi
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Human Body ◽  
Biomedical Applications ◽  
Soft Tissues ◽  
3D Bioprinting ◽  
Potential Applications ◽  
Materials Used ◽  
Living Organisms ◽  
Traditional Manufacturing

Many soft tissues of the human body such as cartilages, muscles, and ligaments are mainly composed of biological hydrogels possessing excellent mechanical properties and delicate structures. Nowadays, bio-inspired hydrogels have been intensively explored due to their promising potential applications in tissue engineering. However, the traditional manufacturing technology is challenging to produce the bio-inspired hydrogels, and the typical biological composite topologies of bio-inspired hydrogels are accessible completed using 3D bioprinting at micrometer resolution. In this chapter, the 3D bioprinting techniques used for the fabrication of bio-inspired hydrogels were summarized, and the materials used were outlined. This chapter also focuses on the applications of bio-inspired hydrogels fabricated using available 3D bioprinting technologies. The development of 3D bioprinting techniques in the future would bring us closer to the fabrication capabilities of living organisms, which would be widely used in biomedical applications.

scholarly journals Pineapple leaf fibers as a reinforcement of biocomposites - an overview

Polimery ◽  
2021 ◽  
Vol 66 (11-12) ◽  
Author(s):  
Rahmah Mohamed ◽  
Norsuriati Muhmad Hapizi ◽  
Mohd Nurazzi Norizan ◽  
Nur Khairunnisa
Keyword(s):  
Mechanical Properties ◽  
Literature Review ◽  
Fiber Length ◽  
Filler Content ◽  
Natural Fibers ◽  
Polymer Fiber ◽  
Factors Influencing ◽  
Potential Applications

Based on 87 references, a literature review was presented on PLA reinforced with pineapple leaf fibers (PALF). The properties of PALF were compared with those of other natural fibers. Mechanical properties of PLA composites and factors influencing them, such as filler content, adhesion at the interface between polymer fiber and matrix, as well as fiber length and their modification were discussed. Potential applications of PLA/PALF composites were also presented.

Microstructural and Mechanical Properties of Ti3SiC2 Composites

2008 ◽  
Vol 403 ◽  
pp. 189-192
Author(s):  
Jow Lay Huang ◽  
Horng Hwa Lu
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Wear Resistance ◽  
Chemical Stability ◽  
Hot Pressing ◽  
Ceramic Composites ◽  
Fracture Mechanisms ◽  
Jet Engines ◽  
Potential Applications ◽  
New Material

Ti3SiC2 has been a spectacular material, as it combines many of the best properties of metals and ceramics. This new material has potential applications for fabrication of jet engines and in bonding phases. Microstructure can further enhance the mechanical properties, such as strength, wear resistance and chemical stability. In the current research the different starting powder systems were used to synthesize Ti3SiC2 by hot pressing. The contents of Si were controlled appropriately to obtain Ti3SiC2/TiC ceramic composites. Preliminary results indicated that the fracture toughness and strength were improved. The influences of TiC contents on the microstructure and mechanical properties were investigated and the fracture mechanisms of Ti3SiC2/TiC ceramic composites are discussed qualitatively.

scholarly journals Analysis of the Behavior of Carbon Nanotubes on Cementitious Composites

2013 ◽  
Vol 2013 ◽  
pp. 1-17 ◽  
Author(s):  
Jorge Fernandes de Morais ◽  
Assed Naked Haddad ◽  
Laia Haurie
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Construction Industry ◽  
Cementitious Materials ◽  
Cementitious Composites ◽  
Science And Engineering ◽  
Nondestructive Tests ◽  
Deformation Properties ◽  
New Material ◽  
Strength And Durability

Nanotechnology has brought significant innovations in science and engineering. Carbon nanotube has been considered a new and outstanding material in nanoscience field with great potential application in the construction industry. The main objective of this study is to analyze the behavior of cementitious materials produced with the insertion of carbon nanotubes of multiple walls in different concentrations and compare their physic-mechanical properties with plain mortar. This research covers the examination of nanoscale cement products and the use of carbon nanotubes to increase the strength and durability of cementitious composites. Three different ratios of carbon nanotubes have been searched: 0.20, 0.40, and 0.60%. To evaluate the mechanical properties of the samples, destructive and nondestructive tests were carried out to obtain compressive strength, tensile strength by diametrical compression, and dynamic modulus of elasticity as well as to determine their deformation properties. Methods of instrumentation such as scanning electron microscopy and porosity were also used in the analysis of microstructure of the materials. The study presents graphs, tables, and figures describing the behavior of CNT added to mortars samples, allowing a better understanding of the use of this new material in the construction industry.

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